Apparatus for making hollow glassware.



No. 779,602. PATENTED JAN. 10, 1905;

E. E. HOFFMAN.

APPARATUS FOR MAKING HOLLOW GLASSWARE.

APPLICATION FILED APR. 7, 1904.

2 SHEETS-411E131 l.

Mm! ml mmuin.

PATENTED JAN. 10, 1905.

E. E. HOFFMAN. APPARATUS FOR MAKING HOLLOW GLASSWARE.

APPLICATION FILED APR. '7, 1904.

2 8HEETSBHEET 2v B Elia/7771101 UNITED STATES Patented January 10, 1905.

EUGENE E. HOFFMAN, OF UPLAND, INDIANA.

APPARATUS FOR MAKING HOLLOW GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 779,602, dated January10, 1905.

Application filed ipril 7, 1904:. Serial No. 202,044.

To all whom, it may concern:

Be it known that I, EUGENE E. HOFFMAN, acitizen of the United States,residing at Upland, in the county of Grant and State of Indiana, haveinvented certain new and useful Improvements in Apparatus for MakingHollow Glassware, of which the following is a specification.

The object of this invention is to providea novel molding apparatus formaking glassware, such as bottles, pitchers, mugs, ointment-pots, orsimilar neckedarticles.

In the practical embodiment of the invention the ware is both pressedand blown in the manufacture thereof, the operation being facilitated bymeans which will be set forth more clearly as the description proceeds.

The invention involves particularly a special construction of formercooperating with the mold by which the blank is initially acted uponpreparatory to being blown to form the body of the receptacle andoperating means for actuating this former.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means forefi ecting the result reference is to be had to the followingdescription and accompanying drawings.

While the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which Figure 1is a perspective view, one of the sections of the mold being thrown openand the cover-plate of said mold being removed.

Fig. 2 is a vertical sectional View. Fig. 3 is a detail perspective viewof the actuator by means of which the movable former is operated. Fig. 4is a detail perspective view of the former. Fig. 5 is a verticalsectional view taken on a line about at a right angle to Fig. 2. Fig. 6is a detail perspective view of the bottom mold-plate.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

My invention consists of a support which comprises a bed-plate 1, onwhich is disposed a supporting-plate 2. The supporting-plate 2 ismounted upon vertical bars 3, which are interposed between this part andthe bed-plate, said bars being of a suitable number to rigidly disposethe parts in their relative positions, as above indicated. The mold isdisposed upon the supporting-plate 2 and comprises the usual movablesections 4:, which are hingedly connected in any suitable manner. Thesupporting-plate 2 is provided about centrally thereof with an opening5, and upon the upper side of the supporting-plate and partiallysurrounding the opening5 aforesaidis providedaflange 6, the outer wallsof which converge, as shown at 7. The under sides of the sections 4 ofthe mold are cut away, so as to embrace and engage the flanges 6, andwhen closed are thus secured upon the supporting-plate 2 aforesaid.

A shell or casing 8 extends upwardly from the supporting-plate 1,immediately beneath the opening 5 therein, and this shell or casinghouses or receives the blank-former 9, which latter is hollow incross-section and adapted to be projected into and out of the mold in amanner which will appear more fully hereinafter. The former 9 isvertically movable and is adapted to rest normally in a lowermostposition within the shell 8.

Peculiar actuating means are utilized to effect the vertical movement ofthe former 9, whereby same is projected into and out of the mold in theoperation of forming the glass article therein. This means consists ofan actuator comprising spaced members 10, disposed upon opposite sidesof the shell 8 between the bed-plate l and the supportingplate 2. Thespaced members 10 are connected at their front and rear ends by means ofcrossbars 11, and said members are adapted for a longitudinally-s1idablemovement beneath the supporting-plate 2 of the device. The actuator isguided in its slidable movement by means of longitudinal guides 12,which are rigidly secured to the upper side of the bedplate 1 and whichcooperate with the lower portions of the spaced members 10 of said ac'tuator to direct the movement of the latter. A handle 13 extends fromone of the crossbars 11 of the actuator, power being applied to thismember in effecting movement of the actuator in the practical operationof the invention.

The actuator may be operated manually by grasping the handle 13 or bymeans of any suitable power applied thereto, as found most suitable inthe use of the invention. The former 9, which is disposed within theshell 8, is provided with engaging members 14, which constitute the endportions of a pin passed transversely through the lower portion of theformer, and these engaging members project laterally from the sides ofthe former and cooperate with the actuating member which is designed toimpart movement to the former. The engaging members 14 extend throughvertical guide-slots 15 in the shell 8, and theextremities of theseengaging members are received by inclined slots 16, provided in thespaced members of the actuator. The slots 16 of the spaced membersaforesaid constitute inclined ways or guides in which the engagingmembers 14 move as the actuator is operated. The

actuator is adapted for a reciprocal movement in effecting operation ofthe former 9, and when the former is in its normal position the engagingmembers 14 thereof are disposed at the lower ends of the slot 16. When aslidable or reciprocal movement is imparted to the actuator by operationof the handle 13 or any suitable power medium, the engaging members arecaused to move upwardly along the inclined ways or slots 16, thusactuating the former so as to impart a vertical movement thereto, saidformer being guided in its vertical movement by the vertical slots ofthe shell 8. The aforesaid vertical movement of the former projects thesame upwardly through the opening 5 of the supporting-plate into themold, as will be readily seen. In order to hold the former at the limitof its upward movement, the slots 16 merge at their upper ends intohorizontal slots 17, and the engaging members rest in'said slots 17after the former has been projected upwardly into the mold. It iscontemplated that the spaced members 10 of the actuator may be providedwith any suitable inclined ways or members for cooperation with theengaging members 14 of the former 9, and the walls of the spaced members10 adjacent the ends of the slotted portions thereof constitute stops tolimit the reciprocal movement of the actuator, as well as the verticalmovement of the former itself. This is important in that since means areprovided upon the actuator for limiting the movement of the former 9 thelatter cannot strike against the mold-sections, so as to jar or strainthe latter in any manner whatever.

A cover-plate 18 rests upon the upper sides of the mold-sections 4, andthis plate is provided about centrally thereof with an opening throughwhich a movable plunger 19 is adapted to pass in the formation of theglass article within the mold. The plunger 19 is disposed above the moldand is adapted to be actuated by any suitable means usually clesignedfor this purpose in an apparatus of the class to which my inventionrelates. Said plunger is of approximately conical form.

The mold-sections 4 which are illustrated in my drawings are adapted forthe formation of a glass cream-pitcher or the like, said sections beingprovided with the inner shoulders 4, which represent the line ofjuncture of the neck of the pitcher with the body'thereof, as shown mostclearly in Figs. 1 and 2. The under sides of the's'ections 4 are cutaway, as shown at 20, and the flange 6 of the supporting-plate 2 islikewise cut away, as shown at 21, so as to admit of introduction intothe mold of the bottom mold-plate 22, which forms the bottom of thereceptacle which is blown or molded in the operation of the invention.

Describing the operation of my invention, in order to form the glassarticle within the mold and the former 9 being disposed in its normalposition in the shell or casing 8 the actuator is first operated by areciprocal or vertical movement thereof, so as to force the former 9upwardly until the upper end thereof is approximately in contact withthe shoulder 4 upon the inner sides of the movable sections 4 of themold. The cover-plate 18 is now placed in position upon the upper sideof the mold, and the requisite quantity of glass is cut off. The plunger16 now descends into the upper portion of the mold and into the hollowbody of the former 9, and the same thus forms the neck, lip, and handleof the pitcher, (if this is the receptacle which is being made.) Thedescent of the plunger 19 also forms a hollow blank in the former 9, andthis blank consists of a body of glass sufficient when blown to form thebody of the receptacle or pitcher in the instance above mentioned. Theplunger 19 having accomplished the above is now withdrawn from the moldand the actuator is again operated so as to lower the former 9 into theshell, the blank or body of glass previously located in the former beingnow suspended from the neck of the receptacle which has just been formedby the plunger 19. After the former has reached its lower normalposition a mold-plate 22 is introduced through the cut-away portions 20and 21 of the mold-sections 4 and the flange 6, respectively. Compressedair is then admitted into the mold, and the blank suspended from theneck is blown out into the mold, completing the glass article in amanner which will be readily appreciated. The completed article is bothpressed and blown, and the lip and handle of the pitcher are formed atthe same time without necessitating the removal of the glass from themold until the entire article is complete.

Having thus described the invention, what is claimed as new is- 1. Thecombination of a mold, a movable former, engaging members extended fromthe IOO former, guide means cooperating with said engaging members, andan actuator engaging the said engaging members to efiect movement of theformer.

2. The combination of a mold, a movable former, engaging membersextended from opposite sides of the said former, and an actuatorcomprising spaced members engaging the engaging members of the former toimpart movement to the said former.

3. The combination ofa mold, a shell or casing, a'former movably mountedin said shell or casing and adapted to be projected into and out of themold, guides provided upon the shell or casing, engaging membersextended from opposite sides of the former and cooperating with theguides aforesaid, and an actuator comprising spaced members havinginclined Ways engaging the engaging members of the former for actuationof the latter.

4:. The combination of a bed-plate, a supporting-plate carried by saidbedplate, a mold disposed upon the supporting-plate, a shell disposedbetween the bed and supporting plates, a former movable in said shelland adapted to be projected into and out of the mold, longitudinalguides secured to the bedplate, an actuator comprising spaced membersslidable upon the bed-plate in the longitudinal guides aforesaid anddisposed upon opposite sides of the shell, connecting means between saidspaced members, said spaced members being provided with inclined slots,the shell being provided with vertical guide-slots, engaging membersextended from the former and cooperating with the guide-slots of theshell and the inclined slots of the actuator members, means for limitingthe movement of the former, and a plunger movable into and out of themold and cooperating with the former.

In testimony whereof I affiX my signature in presence of two Witnesses.

EUGENE E. HOFFMAN.

